The relationship between anthropogenic dust and population over
... The population data are from the Gridded Population of the World data set, version 3 (GPWv3, http://sedac.ciesin. columbia.edu/data/collection/gpw-v3), which is maintained by the Center for the International Earth Science Information Network (CIESIN) and the Centro Internacional de Agricultura Tropi ...
... The population data are from the Gridded Population of the World data set, version 3 (GPWv3, http://sedac.ciesin. columbia.edu/data/collection/gpw-v3), which is maintained by the Center for the International Earth Science Information Network (CIESIN) and the Centro Internacional de Agricultura Tropi ...
Spin-up behavior of soil moisture content over East Asia in a land
... Milly 1997; Hong and Kim 2010). Even when LSMs are run assuming the same soil/vegetation conditions and identical atmospheric forcing, the simulated SMCs show significant discrepancies between LSMs. Thus, soil moisture initialization using data from a LSM that is different from the LSM used for a pr ...
... Milly 1997; Hong and Kim 2010). Even when LSMs are run assuming the same soil/vegetation conditions and identical atmospheric forcing, the simulated SMCs show significant discrepancies between LSMs. Thus, soil moisture initialization using data from a LSM that is different from the LSM used for a pr ...
Soil moisture regulates the biological response of
... regional climate model and showed that an increase in CO2 levels can affect the severity of extreme precipitation and temperature patterns. Curtis and Wang (1998) performed a comprehensive meta-analysis of over 500 reports of elevated CO2 impacts on plant response and concluded that enhanced CO2 lev ...
... regional climate model and showed that an increase in CO2 levels can affect the severity of extreme precipitation and temperature patterns. Curtis and Wang (1998) performed a comprehensive meta-analysis of over 500 reports of elevated CO2 impacts on plant response and concluded that enhanced CO2 lev ...
how to measure and interpret results in relation to soil organic carbon
... determine where there is a need to soil sample. Avoid sampling in atypical areas such as header trails, windrows, corners of paddocks, close to fences or tracked areas as these are likely to have different soil organic carbon levels to the remainder of the paddock due to overruns, double application ...
... determine where there is a need to soil sample. Avoid sampling in atypical areas such as header trails, windrows, corners of paddocks, close to fences or tracked areas as these are likely to have different soil organic carbon levels to the remainder of the paddock due to overruns, double application ...
Net regional methane sink in High Arctic soils of northeast Greenland
... greenhouse gas1–5 . Numerical simulations project a net increase in methane consumption in soils in high northern latitudes as a consequence of warming in the past few decades3,6 . Advances have been made in quantifying hotspots of methane emissions in Arctic wetlands7–13 , but the drivers, magnitud ...
... greenhouse gas1–5 . Numerical simulations project a net increase in methane consumption in soils in high northern latitudes as a consequence of warming in the past few decades3,6 . Advances have been made in quantifying hotspots of methane emissions in Arctic wetlands7–13 , but the drivers, magnitud ...
Reports on the impacts of Polyhalite when used as fertilizer
... systems K offtake exceeds K inputs. This negative K balance has been suggested as a cause of sub-optimal yields, and will cause soil K status to decline further. There is a decreasing trend in atmospheric S deposition to soil globally, with a concomitant increase in standard S fertiliser recommendat ...
... systems K offtake exceeds K inputs. This negative K balance has been suggested as a cause of sub-optimal yields, and will cause soil K status to decline further. There is a decreasing trend in atmospheric S deposition to soil globally, with a concomitant increase in standard S fertiliser recommendat ...
Carbon to Climate Change
... ocean or land C into the atmosphere in response to a changing climate (Gruber et al. 2004). These so-called vulnerable C pools and the processes that affect them include thawing permafrost, wetland drying, fires/land-use change, methane hydrates, and the ocean biological pump (Field and Raupach 2004 ...
... ocean or land C into the atmosphere in response to a changing climate (Gruber et al. 2004). These so-called vulnerable C pools and the processes that affect them include thawing permafrost, wetland drying, fires/land-use change, methane hydrates, and the ocean biological pump (Field and Raupach 2004 ...
Hydrological drought across the world: impact of climate and
... Likely, drought will worsen in many parts of the world because of climate change (e.g., Bates et al., 2008; Seneviratne et al., 2012). Moreover, vulnerability will increase in numerous regions as a response to population growth and, thus, higher demand for water. Water security and associated food s ...
... Likely, drought will worsen in many parts of the world because of climate change (e.g., Bates et al., 2008; Seneviratne et al., 2012). Moreover, vulnerability will increase in numerous regions as a response to population growth and, thus, higher demand for water. Water security and associated food s ...
Contrasting diel hysteresis between soil autotrophic and
... September) of 2009, five precipitation treatments were designed to simulate a rain increase of 0% (CK), 25% (+ 25%PPT), 50% (+ 50%PPT), 75% (+ 75%PPT) and 100% (+ 100%PPT) over long-term average annual precipitation at the study site (115 mm). The precipitation addition treatments were applied every ...
... September) of 2009, five precipitation treatments were designed to simulate a rain increase of 0% (CK), 25% (+ 25%PPT), 50% (+ 50%PPT), 75% (+ 75%PPT) and 100% (+ 100%PPT) over long-term average annual precipitation at the study site (115 mm). The precipitation addition treatments were applied every ...
here - Berkeley Food Institute - University of California, Berkeley
... Soil health is a key driver of agricultural productivity, environmental resilience, and human security worldwide. In the United States, soils are one of the most valuable commodities, producing $835 billion in agriculture and related industries annually, and providing 17.3 million jobs at 9.4% of to ...
... Soil health is a key driver of agricultural productivity, environmental resilience, and human security worldwide. In the United States, soils are one of the most valuable commodities, producing $835 billion in agriculture and related industries annually, and providing 17.3 million jobs at 9.4% of to ...
Subglacial and Proglacial Ecosystem Responses to
... has been argued that liquid water is present at subfreezing temperatures in the microndiameter vein network between ice crystals (Price, 2000) and as a nanometer-thick water film interface between ice and entrained mineral grains (Price, 2007). These two potential habitats may both contain ion-rich ...
... has been argued that liquid water is present at subfreezing temperatures in the microndiameter vein network between ice crystals (Price, 2000) and as a nanometer-thick water film interface between ice and entrained mineral grains (Price, 2007). These two potential habitats may both contain ion-rich ...
PALSEA2 2016 Workshop: Sea-level budgets at decadal to
... The coasts and shelf areas of the Russian Arctic seas are situated in different geotectonic settings and are therefore characterized by different rates of the recent vertical movements of the Earth's crust. To study their mechanisms and velocities, relative sea level changes (RSL) in several regions ...
... The coasts and shelf areas of the Russian Arctic seas are situated in different geotectonic settings and are therefore characterized by different rates of the recent vertical movements of the Earth's crust. To study their mechanisms and velocities, relative sea level changes (RSL) in several regions ...
Montane forest root growth and soil organic layer depth as potential
... Figure 1. Observed and simulated Peruvian forest biogeochemical processes. (a) A conceptual diagram of a negative weathering feedback. Mycorrhizosphere weathering takes place in the few millimeter surrounding the mycorrhizosphere and collectively increases total weathering by between 14 and 52%, and ...
... Figure 1. Observed and simulated Peruvian forest biogeochemical processes. (a) A conceptual diagram of a negative weathering feedback. Mycorrhizosphere weathering takes place in the few millimeter surrounding the mycorrhizosphere and collectively increases total weathering by between 14 and 52%, and ...
Ground ice melt in the high Arctic leads to greater ecological
... 1. The polar desert biome of the Canadian high Arctic Archipelago is currently experiencing some of the greatest mean annual air temperature increases on the planet, threatening the stability of ecosystems residing above temperature-sensitive permafrost. 2. Ice wedges are the most widespread form of ...
... 1. The polar desert biome of the Canadian high Arctic Archipelago is currently experiencing some of the greatest mean annual air temperature increases on the planet, threatening the stability of ecosystems residing above temperature-sensitive permafrost. 2. Ice wedges are the most widespread form of ...
Ground ice melt in the high Arctic leads to greater ecological
... 1. The polar desert biome of the Canadian high Arctic Archipelago is currently experiencing some of the greatest mean annual air temperature increases on the planet, threatening the stability of ecosystems residing above temperature-sensitive permafrost. 2. Ice wedges are the most widespread form of ...
... 1. The polar desert biome of the Canadian high Arctic Archipelago is currently experiencing some of the greatest mean annual air temperature increases on the planet, threatening the stability of ecosystems residing above temperature-sensitive permafrost. 2. Ice wedges are the most widespread form of ...
GEOGRAPHY
... XX cc.) and current satellite images. The forest distribution within the Central Russian Upland has been relatively stable during the last 220 years. On average, the decrease in the forested area was small. However, we identified significant changes in certain regions. In the southern part of CRU, t ...
... XX cc.) and current satellite images. The forest distribution within the Central Russian Upland has been relatively stable during the last 220 years. On average, the decrease in the forested area was small. However, we identified significant changes in certain regions. In the southern part of CRU, t ...
Effects of Rainfall Patterns on Soil Nitrogen Cycling
... The simulated 1 m deep one dimensional soil column was discretized with a spatial resolution of 1.0 cm (Table 2). The soil profile was divided into six soil layers: 02.5, 2.5-7.5, 7.5-15, 15-30, 30-50, 50-100 cm. The Rosetta module (Schaap et al., 2001) was applied using the data listed in Table 1. ...
... The simulated 1 m deep one dimensional soil column was discretized with a spatial resolution of 1.0 cm (Table 2). The soil profile was divided into six soil layers: 02.5, 2.5-7.5, 7.5-15, 15-30, 30-50, 50-100 cm. The Rosetta module (Schaap et al., 2001) was applied using the data listed in Table 1. ...
Soil Organic Carbon: the hidden potential
... Within the Framework of the United Nations Framework Convention on Climate Change (UNFCCC), international agreements such as the Kyoto Protocol and the Paris Agreement have set the rules for GHG emission targets, as well as the necessity to regularly report on anthropogenic GHG emissions. As part o ...
... Within the Framework of the United Nations Framework Convention on Climate Change (UNFCCC), international agreements such as the Kyoto Protocol and the Paris Agreement have set the rules for GHG emission targets, as well as the necessity to regularly report on anthropogenic GHG emissions. As part o ...
Climate Forcing and Erosion Modelling in the Sele River
... The original forest-covers have been fragmented by agriculture that is the main activity in this region. Especially during and after the typical tillage period (September–December), erosive rainfalls are very hazardous in this area that is affected by a mixed regime of frontal rainstorms and localis ...
... The original forest-covers have been fragmented by agriculture that is the main activity in this region. Especially during and after the typical tillage period (September–December), erosive rainfalls are very hazardous in this area that is affected by a mixed regime of frontal rainstorms and localis ...
1588341 b919
... Publically available data was gathered on rainfall, soil, elevation and vegetation to be implemented within the ArcGIS 10.3.1 suite. Results show that present and future estimated mean annual soil loss in Kungsbackaån watershed will be within bounds of very low soil loss of 0 – 0,5 t/ha/y but with i ...
... Publically available data was gathered on rainfall, soil, elevation and vegetation to be implemented within the ArcGIS 10.3.1 suite. Results show that present and future estimated mean annual soil loss in Kungsbackaån watershed will be within bounds of very low soil loss of 0 – 0,5 t/ha/y but with i ...
Observed 20th Century Desert Dust Variability: Impact on Climate
... biogeochemistry that can modulate ocean carbon storage; here we show that dust deposition trends increase ocean productivity by an estimated 6% over the 20th century, drawing down an additional 4 ppm (8 PgC) of carbon dioxide into the oceans. Thus, perturbations to desert dust over the 20th century ...
... biogeochemistry that can modulate ocean carbon storage; here we show that dust deposition trends increase ocean productivity by an estimated 6% over the 20th century, drawing down an additional 4 ppm (8 PgC) of carbon dioxide into the oceans. Thus, perturbations to desert dust over the 20th century ...
Soil Carbon Research Program - Department of Agriculture and
... The Australian Government acting through the Department of Agriculture, Fisheries and Forestry has exercised due care and skill in the preparation and compilation of the information and data in this publication. Notwithstanding, the Department of Agriculture, Fisheries and Forestry, its employees an ...
... The Australian Government acting through the Department of Agriculture, Fisheries and Forestry has exercised due care and skill in the preparation and compilation of the information and data in this publication. Notwithstanding, the Department of Agriculture, Fisheries and Forestry, its employees an ...
Pulse Emissions of Carbon Dioxide during Snowmelt at a
... fluxes associated with periods of snowmelt are well documented (Weller et al., 1972; Ling and Zhang, 2003) and may be used to predict snowpack dynamics (Ling and Zhang, 2003). Other studies have inferred snowmelt from changes in microclimate or energy balance, including Harte et al. (1995), who simp ...
... fluxes associated with periods of snowmelt are well documented (Weller et al., 1972; Ling and Zhang, 2003) and may be used to predict snowpack dynamics (Ling and Zhang, 2003). Other studies have inferred snowmelt from changes in microclimate or energy balance, including Harte et al. (1995), who simp ...
Contribution of soil moisture feedback to hydroclimatic variability
... We wanted to assess the impact of soil moisture feedback not only on the mean and variance of climate, but also on the persistence of anomalous climate in space and time over timescales of seasons to years. For each climate variable and grid cell, we calculated the sample autocorrelation of the 12-m ...
... We wanted to assess the impact of soil moisture feedback not only on the mean and variance of climate, but also on the persistence of anomalous climate in space and time over timescales of seasons to years. For each climate variable and grid cell, we calculated the sample autocorrelation of the 12-m ...